Perovskite solar cells (PSCs) have emerged as one of the advanced technologies within the photovoltaics sector, characterized by their exceptional efficiency, customisable properties, and straightforward manufacturing processes. The distinctive structural and optoelectronic characteristics of perovskite materials, including high absorption coefficients, extended carrier diffusion lengths, and adjustable bandgaps, render them highly suitable for next-generation solar energy applications. Over the past decade, PSCs have achieved remarkable progress in power conversion efficiencies rising from just 3.8% in 2009 to over 26% in recent years. This book chapter investigates the progress and innovations in PSCs, covering aspects such as perovskite material, device design, and performance enhancement. Here discussion undergoes significant advancements in interfacial engineering, and approaches to improve stability and scalability in production. Particular attention is given to environmental issues, such as lead toxicity and durability in outdoor conditions. Here, by analysing the current advancements and prospects, this overview seeks to offer meaningful insights into the transformative capabilities of PSCs and their contribution to a sustainable energy future.